Which ways of treating liquid waste control is employed as preliminary treatment for removal of large solid particles prior to final treatment or discharge into a municipal sewage system?
A. Chemical treatment
B. Lagooning- biological disposal
C.Screening
D. Spray - irrigation - land disposal
help me please
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A. Chemical treatment
B. Lagooning- biological disposal
C.Screening
D. Spray - irrigation - land disposal
help me please
nonsense report
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Answer:
C. Screening
Explanation:
Operations such as preliminary treatment, basically include coarse screening, grit removal, and in most cases, the comminution of large objects. The velocity of the water through a grit chamber is constantly high, so air is used, in order to prevent the settling of most organic solids.